20102696 has 8 divisors (see below), whose sum is σ = 37692570. Its totient is φ = 10051344.

The previous prime is 20102689. The next prime is 20102701. The reversal of 20102696 is 69620102.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 7214596 = 3590^2 + 2686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256411 + ... + 1256426.

Almost surely, 2^20102696 is an apocalyptic number.

It is an amenable number.

20102696 is a deficient number, since it is larger than the sum of its proper divisors (17589874).

20102696 is a wasteful number, since it uses less digits than its factorization.

20102696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512843 (or 2512839 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20102696 is about 4483.6030154330. The cubic root of 20102696 is about 271.9055684306.

Adding to 20102696 its reverse (69620102), we get a palindrome (89722798).

The spelling of 20102696 in words is "twenty million, one hundred two thousand, six hundred ninety-six".